从django的中间件直接返回请求

#coding=utf-8
import json
import gevent

from django.http import HttpResponse
from sdsom.web.recorder import get_event_type
from sdsom.web.recorder import get_request_event_info
from sdsom.db.rpcclient import get_db_client

class RecordEventMiddleWare(object) :

def process_view(self, request, view, args, kwargs) :
etype = get_event_type(request)
if not etype :
return None
info = get_request_event_info(request, etype)

info['status'] = "BEGIN"
try:
get_db_client().add_event_record(info)

except :
return HttpResponse(
json.dumps({"susscess":0, "message":"记录事件开始到数据库出错"}),
content_type='application/json'
)

return None